CVE-2020-36322: An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka CID-5d069

Routine

MEDIUM 5.5WATCHLISTUPGRADEMITIGATEDOWNGRADE

CVE-2020-36322 is a medium-severity flaw (CVSS 5.5) affecting linux kernel, debian linux, starwind virtual san. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka CID-5d069dbe8aaf. fuse_do_getattr() calls make_bad_inode() in inappropriate situations, causing a system crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as CVE-2021-28950.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-459
Published	2021-04-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · linux · starwindsoftware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-04-14 06:15 UTCPublished CVE record published
2026-06-17 03:15 UTCUpdated Record last modified

linux linux kernel UPGRADE

Affected: < 5.10.6

Fixed in: 5.10.6

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

debian debian linux MITIGATE

Affected: 9.0 · 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

starwindsoftware starwind virtual san DOWNGRADE

Affected: 8 14338

Fixed in: no fixed release known

Safe to downgrade to: a release before 8

1. Check installed version

apt-cache policy starwind-virtual-san || rpm -q starwind-virtual-san || starwind-virtual-san --version

2. No fixed release: DOWNGRADE to a release before 8 (Debian / Ubuntu)

apt-cache madison starwind-virtual-san sudo apt install starwind-virtual-san=<VERSION_BEFORE_8> sudo apt-mark hold starwind-virtual-san

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list starwind-virtual-san sudo dnf downgrade starwind-virtual-san-<VERSION_BEFORE_8> sudo dnf versionlock add starwind-virtual-san

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-36322?

linux kernel: upgrade to 5.10.6; debian linux: mitigate or apply the listed mitigation; starwind virtual san: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-36322 being exploited?

CVE-2020-36322 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-36322 affect?

CVE-2020-36322 affects linux kernel, debian linux, starwind virtual san. Severity is medium (CVSS 5.5). An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka CID-5d069dbe8aaf. fuse_do_getattr() calls make_bad_inode() in inappropriate situations, causing a system crash. NOTE: the original fix for

How urgent is CVE-2020-36322?

Priority 32/100. On your watchlist

Software pages

Linux kernel vulnerabilities · Debian vulnerabilities

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References

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